![]() This arrangement is necessary to provide relief to the tool while making vertical or angular cuts. By releasing the clamping screw, the apron may be swiveled upon the apron swivel pin either towards left or towards right with respect to the vertical slide. The amount of feed or depth of cut may be adjusted by a micrometer dial on the top of the downfeed screw.Īpron consisting of by a screw. By rotating the downfeed screw handle, the vertical slide carrying the tool executes down feed or angular feed movement while machining vertical or angular surface. The swivel base is graduated in degrees, so that the vertical slide may be set perpendicular to the work surface or at any desired angle. The vertical slide of the swivel base which is held on a circular seat on the ram. The toolhead of a shaper holds the tool rigidly, provides vertical and angular feed movement of the tool and allows the tool to have an automatic relief during its return stroke. A universal is mostly used in tool room work. As the work mounted on the table can be adjusted in different planes, the machine is most suitable for different types of work and is given name “ Universal “. ![]() In a universal shaper, in addition to the two movements provided on the table of a standard shaper, the table can be swiveled about an axis parallel to the ram ways, and upper portion of the table can be tilted about a second horizontal axis perpendicular to the first axis. ![]() Position of stroke adjustment handwheel, 8. Shapers are classified under the following headings.Ī.Ěccording to the type of mechanism used for giving reciprocating motion to the ram: - (a) Crank type (b) Geared type (c) Hydraulic type.ī.Ěccording to the position and travel of ram: - (a) Horizontal type (b) Vertical type (c) Traveling head type.Ĭ.Ěccording to the type of design of the table : (a) Standard shaper (b) Universal shaper.ĭ.Ěccording to the type of cutting stroke: - (a) Push type (b) Draw type.ġ. Shapers are classified in number of ways depending upon the general features of design or the purpose for which they are intended. The metal working shaper was developed in the year 1836 by James Nasmyth an, Englishman.
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